Insertable component which can be inserted into a gas or liquid line

ABSTRACT

An insertable component that is embodied as a non-return element and/or as a through-flow regulator is provided which can be inserted into a gas or liquid line. The insertable component ( 1 ) includes a housing ( 2 ) formed of at least two housing parts ( 3, 4 ). A housing seal ( 5 ) is located between the housing parts ( 3, 4 ). The housing seal is joined as a single piece to an annular membrane ( 11 ), which is used as a closing body for the non-return element, and/or a regulating or throttle body. The insertable component includes a small number of individual parts and is characterized by a compact structure and low production costs.

BACKGROUND

The invention relates to an insertable component, which is embodied as anon-return element and which can be inserted into a gas or liquid line,having a housing with at least one closing body being displaceablyarranged inside the housing, that seals a through-flow opening orseveral through-flow openings of feeder channels in the closed position.

The invention also relates to an insertable component, which is embodiedas a through-flow regulator and which can be inserted into a gas orliquid line, having a housing with at least one throttle body orregulating body being arranged inside said housing, limiting aregulating gap between itself and a housing wall, with the gap changingdepending on pressure.

It is commonly known to combine several sanitary components into asingle sanitary insertable unit, particularly some that serve variousfunctions. From DE 297 03 335 U1 by the applicant, a backflow preventerhas been known, which represents a component of an insertable sanitaryunit in addition to comprising an upstream sieve for contaminants and adownstream through-flow regulator. Such sanitary insertable units areinserted for example at the cold water and warm water inlet inthermostat-controlled mixing faucets, in order to prevent, with the helpof the non-return unit, the entry of cold water into the warm water pipeand vice versa and in order to ensure an even water flow, using thethrough-flow regulator, even in varying liquid pressures of theinflowing water.

The previously known backflow preventer comprises a housing with acone-shaped valve arranged therein. The cone-shaped valve cooperateswith the valve seat, which is molded inside the housing. The cone-shapedvalve can be displaced from a closed position into an open position bythe pressure of the inflowing water against the returning force of apressure spring. In an opposite flow, the cone-shaped valve is displacedinside the housing towards the valve seat and the return preventor isclosed to prevent any undesired return flow.

The through-flow regulator provided in the sanitary insertable unitaccording to DE 297 03 335 U1 and positioned downstream theabove-described through-flow regulator comprises a control core,conically tapering in the through-flow direction, which cooperates witha rubber ring that can be widened depending on water pressure.

The previously known sanitary insertable unit and, in particular, theinsertable components contained therein are multipart andcorrespondingly expensive in their production. Due to the fact that theinsertable components serving various functions are positioneddownstream of one another in the through-flow direction, the insertablesanitary unit of prior art comprises a comparatively large constructionlength, which can be further extended by additional insertablecomponents added upstream or downstream.

SUMMARY

Therefore, the object is particularly to provide insertable componentsof the type mentioned at the outset that can be inserted into gas orliquid lines, which can be produced with comparatively little expenseand which are designed simple and compact.

In the insertable component according to the invention, embodied as abackflow preventer, the solution comprises for the housing to be madefrom at least two housing parts and being provided with feeder channelsin at least one annular area, which open into a housing chamber, andthat a housing seal is provided between facing sides of two adjacenthousing parts, the housing seal is connected in one piece to an annularmembrane, which can be displaced by the flow medium, inside the housingchamber, and forms a closing body.

The insertable component according to the invention, embodied as anon-return element, is provided with a housing which is formed by atleast two preferably coaxial housing parts. A housing part seal is heldbetween these housing parts, connected in one piece to at least oneannular membrane, which can be displaced by the flow medium, inside ahousing chamber. When return flow occurs, at least one annular membraneforming a closing body seals the through-flow opening of the feederchannels, which are arranged in at least one annular area inside thehousing of the outer housing. However, with a liquid flow, flowing inthe normal through-flow direction, the at least one annular membrane isdisplaced from the closing position into the open position, in which thethrough-flow openings remain open. The non-return element according tothe invention can thus be combined from as little as three parts, namelythe two housing parts and the single part combining the annular membraneand the housing seal. The non-return element according to the inventioncan therefore be produced easily and in a compact size.

A particularly simple embodiment of the insertable component embodied asa non-return element provides for the housing seal and the at least oneannular membrane, forming the closing body, to be embodied as a flatbody. In the insertable component according to the invention the housingseal and the at least one annular membrane, forming the closing body,can be embodied as a one-piece flat body and do not require anycomplicated design.

The solution provides for the insertable component embodied as athrough-flow regulator according to the invention, that the housing ismade from at least two housing parts and that between the facing sidesof two adjacent housing parts, a housing seal is provided, which isconnected in one piece to the at least one throttle body located insidethe housing.

The insertable component, embodied as a through-flow regulator,comprises a housing, which is composed of at least two preferablycoaxial housing parts. A housing seal is held between these housingparts, connected in one piece to the at least one throttle body locatedinside the housing. This at least one throttle body limits a control gapbetween itself and a housing wall, which gap changes depending onpressure. In this way, the insertable component embodied as athrough-flow regulator can be composed inexpensively from only threeindividual components.

In order to securely fasten the housing seal and the annular membraneconnected thereto and/or the throttle body to the inside of the housingin a simple manner, it is advantageous for the housing parts to beprovided with annular flat surfaces, facing one another, between whichthe housing seal can be mounted.

In order to further facilitate the production of the insertablecomponents according to the invention it is advantageous for the atleast two housing parts to be provided with snap elements for connectingthe housing parts, engaging one another in the mounted position. Thisway, a complicated screw connection, gluing, or welding can be omittedfor the assembly of the exterior housing formed by the housing parts.

A particularly easy to assembly embodiment according to the inventionprovides for the snap elements of one of the housing parts to comprise acentral opening and for the other housing part to preferably compriseseveral engaging hook elements.

The insertable component according to the invention can be easilydisassembled, if necessary, when the hook elements of the one housingcomponent penetrate the other housing component in the assembledposition and extend beyond its exterior.

A preferred embodiment according to the invention provides for thefacial areas clamping the housing seal to be located at the exterior rimof the housing parts. The rim position of the clamping area of thehousing seal allows for a comparatively large functional area inside thehousing for annular membranes and/or throttle bodies.

The small number of parts of the insertable component according to theinvention is enhanced even more when the internal surface of the housingpart arranged in the flow direction extends beyond the clamping area ofthe housing seal towards the inside and forms a section of the housingchamber wall, and where one or several feeder channels open. The throughopenings of these feeder channels can be arranged in several,particularly concentric annular areas of the housing. However, it isparticularly advantageous for several feeder channels to be arranged onan annular part of the housing, distributed in the circumferentialdirection, which preferably open immediately adjacent to the clampingarea of the region of the annular membrane that forms the housing seal.

The insertable component embodied as a non-return element reactsparticularly quickly to small return flows when the annular membrane isextended inwardly beyond a region internally adjacent to the housingseal, forming the closing body, and thus forms a separating wall in theopen or through-flow position, dividing the housing chamber into twopartial annular chambers, and in this position contacts with its freeinterior annular rim the housing part at the downstream side, when apenetrating and/or through-flow opening follows to the upstream partialannular chamber and when at least one non-return opening opens into thedownstream partial chamber.

In order to fasten the throttle body in its control position it isadvantageous for the throttle body to be fastened in a housing chamberbetween the upstream and the downstream housing part and for thedownstream housing part to comprise a downstream rest and an exteriorsupport and for the upstream housing part to comprise an interiorhousing wall or a similar rest, forming the limit of the control gap,for the annular throttle body.

A particularly advantageous further development according to theinvention, which independent protection is claimed, provides for theinsertable component according to the invention to be embodied as anon-return element and as a through-flow regulator.

Here it can be advantageous for the annular membrane to be embodied as aclosing body adjacent to the housing seal and to be connected to thethrottle body in one piece at its interior end. This further developedembodiment, which can also be made from as little as three individualparts, is embodied both as a non-return element as well as athrough-flow regulator. Here, the closing body required for thenon-return element and the throttle body required for the through-flowregulator are connected in one piece to the housing seal. Such anembodiment is particularly compact and is characterized in a lowconstruction height, as well.

The small number of parts of the insertable component according to theinvention is even further enhanced in its high functionality when it isembodied for the insertion into a liquid line and comprises an annularseal at an exterior thereof for sealing the liquid line, and when theannular seal is connected in one piece to the housing seal between thefacing sides of the housing component.

Here, it is particularly advantageous for the exterior annular seal tobe embodied as an O-ring seal or an annular cord seal.

In order to fasten the annular seal to the exterior of the housing it isadvantageous for an annular groove to be provided on the outside betweenthe two adjacent housing parts for accepting the exterior annular sealand for the annular groove to be formed by a housing recess in onehousing part, open towards the separation point of the housing forforming a side wall and the bottom of the groove, and for the interiorfacing surface of the other housing part to form the second side wall.

Another preferred embodiment, worth protecting in itself, relates to aninsertable component embodied as a through-flow regulator, which canmaintain the constant through-flow of fluid under a wide range ofpressures, from 0.1 bar to 10 bar, for example.

Previous embodiments of sanitary through-flow regulators have theirrespective strengths in certain pressure zones. For example,through-flow regulators have been known which achieve a characteristicthrough-flow at very high pressures, however they have problems tostabilize the target line in the medium and strong pressure ranges. Theseparating line drifts upward or downward or it shows oscillatingphenomenon. Other known embodiments of throughflow-regulators, operatingvery well in medium to high pressure ranges, use an O-ring whichcounteracts a control profile. However, at very low differentialpressures of 0.1 bar, for example, the O-ring does not react to thepressure difference, the through-flow results entirely from theavailable cross-section. Due to the fact that the O-ring only reacts ata relatively high pressure, the free cross-section cannot be selectedtoo large because otherwise the through-flow becomes too large in thereaction range and an undesired exceeding of the characteristic lineoccurs. Therefore, through-flow regulators of this type only achievetheir respective targeted through-flow at approx. 0.7 to 1.0 bar. Asimilar embodiment of this class of through-flow regulators is theelastomer disc, which is supported with its flat bottom on a supportprofile.

A further development according to the invention provides for thehousing seal at both sides to be connected in one piece to at least onethrottle body each, which throttle body being supported on the inside ofthe housing in a control gap. Here, it is particularly advantageous forthe throttle body provided at both sides of the housing seal to react atdifferent differential pressures, and for a first throttle bodypreferably to react in a low-pressure range and, in contrast thereto, asecond throttle body in a high-pressure range.

The housing seal in this embodiment according to the invention istherefore connected in one piece at both sides to a throttle body each.The throttle bodies react with different sensitivities and thus they cancontrol the through-flow amount in various pressure ranges such thatthey complement each other, particularly in the low-pressure and thehigh-pressure range. While the highly sensitive throttle body alreadydiminishes the free cross-section of the flow of the control gap at alow differential pressure of 0.1 bar, for example, the throttle bodyreacting to high differential pressure deforms not until a furtherincreased pressure and thus keeps the through-flow constant in the highpressure range. The characteristic line of such a regulator achieves thetargeted through-flow at very low pressures and maintains it at aconstant levels up to a high pressure range of approximately 10 bar, forexample.

It can be useful for the insertable component embodied as a non-returnelement and/or a through-flow regulator to be provided with at least onethrottle body or regulating body designed in a lip-shaped manner.However, it is also possible for the insertable component toadditionally or instead comprise a throttle body designed as at leastone O-ring.

In order for the lip-shaped throttle body to be able to reactsensitively to a differential pressure it is useful for at least onelip-shaped throttle body with its free lip end region to be alignedpreferably diagonally opposite the through-flow direction.

In order to abruptly increase the resistance of the throttle body,beginning at a predetermined rate of deformation, one embodimentaccording to the invention provides for the control movement of at leastone lip-shaped throttle body to be limited by a control stop.

By arranging this control stop and by providing an appropriate distanceof the control stop and the throttle body arranged upstream therefromthe differential pressure can be varied by the design, at which therespective throttle body is to react. Additionally or instead thereof itcan also be provided for the throttle bodies, arranged at both sides ofthe housing seal, to be designed differently, each adjusted to theirreactive pressure.

For example it is possible, on the one hand, that the housing seal isconnected to a lip-shaped throttle body and, on the other hand, to athrottle body embodied as an O-ring. While the comparatively soft,lip-shaped throttle body already reacts to low differential pressures,an appropriately stiff throttle body, embodied as an O-ring, can becharacterized by a high reaction pressure, in reference thereto.However, it is also possible for the housing seal to be connected atboth sides with lip-shaped or with O-ring shaped throttle bodies, whichbecome active at different pressure ranges based on their design anddimensions.

Therefore, another embodiment according to the invention provides forthe housing seal to be connected at both sides each with a lip-shapedthrottle body.

The reaction behavior of the through-flow regulator according to theinvention can also be influenced such that the throttle body reacting inthe low-pressure range is allocated to the interior or exterior controlgap, because the throttle body effective in the exterior control gapseals a larger area during its deformation radially outward than the lipof the throttle body located inside the control gap.

A further development of the invention provides for the housing seal andthe throttle bodies connected thereto to be formed as a multi-componentdie-cast part and for the throttle bodies to be comprised of variouselastomers.

In order to enhance an easy reaction of the throttle body of theinsertable component embodied as a through-flow regulator and in orderto be able to predetermine said through-flow regulator to a fixedmaximum amount of flow it is advantageous for the housing wall limitingthe control gap to be provided with rib-shaped, grooved, or similarlyembodied regulating profiling aligned approximately in the through-flowdirection.

BRIEF DESCRIPTION OF THE DRAWINGS

Additionally embodiments of the invention are described in the subclaims. In the following, the invention and its essential details areexplained further with the drawings.

Shown are:

FIG. 1 an insertable component embodied as a non-return element and as athrough-flow regulator, that can be inserted into a gas or liquid line,shown in a longitudinal cross-section,

FIG. 2 an insertable component embodied only as a non-return element,shown in a longitudinal cross-section,

FIG. 3 a downstream facing surface of an insertable component accordingto FIGS. 1 or 2,

FIG. 4 an insertable component embodied as a through-flow regulator andshown in a longitudinal cross-section, with its two housing parts havinga housing seal clamped therebetween, whose parts are each connected inone piece at both sides with a throttle-body, lip-shaped and supportedin a control gap,

FIG. 5 a through-flow regulator according to FIG. 4 in a top view,

FIG. 6 a through-flow regulator comparable to FIGS. 4 and 5, howeverwith the housing seal being connected to a throttle body embodied as anO-ring in the area of the interior control gap and a lip-shaped throttlebody in the area of the exterior control gap,

FIG. 7 a through-flow regulator also comparable to the FIGS. 4 and 5,with its housing seal being connected to two lip-shaped throttle bodies,which react to different differential pressures and have differentgeometrical shapes for this purpose, and

FIG. 8 a through-flow regulator comparable to the one in FIG. 6, howeverwith the O-ring shaped throttle body arranged in the area of theexterior control gap and the lip-shaped throttle body in the area of theinterior control gap.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

A sanitary insertable component, which can be inserted into a gas orliquid line, is shown in FIGS. 1 and 2 in different embodiments 1, 10.While the insertable component 10 in FIG. 2 is to serve merely as anon-return element, the insertable component 1 in FIG. 1 is integratedboth as a non-return element as well as a through-flow regulator.

The exterior housing 2 of the insertable components 1, 10 is formed fromtwo coaxial housing parts 3, 4, having sides that face one anotherbetween which a housing seal 5 is held. The housing parts 3, 4 areconnected to one another via snap elements which engage in the mountedposition. For this purpose, the downstream housing part 4 is providedwith a central opening 6, with 4 hook elements 7, pointing cross-wiseaway from one another, and engaging the upstream housing part 3. Thesehook elements 7 extend beyond the downstream exterior face of thehousing 2.

The insertable component 1, 10, can be inserted into a liquid line. Inorder to seal the interior circumference of the liquid line, an annularseal 8 is provided, which is connected in one piece to the housing seal5. This annular seal 8, embodied as an annular cord seal, is held in anannular groove 9, which is provided on the outside between the twohousing parts 3, 4 for accepting the annular seal 8.

The annular groove 9 is limited by a housing recess, open towards theseparating point of the exterior housing 2, at the upstream housing part3, which housing recess forms a side wall and the groove base. However,the interior surface of the other housing part 4 forms the other sidewall of the annular groove 9.

The two housing parts 3, 4 are provided at their exterior edges withannular surfaces, facing one another, between which the housing seal 5is clamped. The housing seal 5, at the side facing away from the annularseal 8, is connected in one piece to an annular membrane 11, which canbe displaced inside a housing chamber 12 by the flow medium and which isembodied as a closing body of the non-return element.

Starting at the upstream surface of the exterior housing 2, severalfeeder channels 13 lead through the housing part 3, lead with theirthrough openings 14 into the housing chamber 12 at a distance from oneanother in the circumferential direction. While the annular membrane 11is displaced by a flow of liquid flowing in the usual through-flowdirection Pf1 in its open position, it is held in its closing positionduring a back flow, opposite the through-flow direction Pf1, which sealsthe downstream mouths of the through openings 14 with the annularmembrane 11.

The annular membrane 11 of the insertable component 1 shown in FIG. 1 isconnected in one piece to a throttle body or control body 15 of thethrough-flow regulator with its interior end, facing away from the seals5, 8. The throttle body 15, also located in the housing chamber 12inside the housing of the exterior housing 2, limits a control gap 17between itself and the housing wall 16, with the gap changing dependingon pressure. The throttle body 15 is embodied in the shape of an O-ringand mounted between the upstream and the downstream housing part 3, 4inside the housing chamber 12.

While the downstream housing part 4 forms a downstream rest and anexterior support for the throttle body 15, the upstream housing part 3is provided with a central housing or control core, tapering in thethrough-flow direction Pf1, which forms the housing wall 16 serving as acontrol gap limit for the annular throttle body 15 and having hookelements 7 protruding from the face of its free end.

In the insertable component 10 according to FIG. 2, the housing seal 5,connected to the annular seal 8, and the annular membrane 11, adjacenttowards the inside and serving as a closing body of the non-returnelement, are provided as flat bodies. Here, the annular membrane 11 isextended inwardly beyond an area adjacent to the housing seal 5,provided as a closing body, and forms in the open position a separatingwall, dividing the housing chamber 12 into two partial annular chambers19, 20, with not only the through openings 14 of the feeder channels 13leading into the upstream partial annular chamber 19 but also thedownstream openings 21, which remain in the central opening 6 betweenthe hook elements 7. However, several return flow openings 22 open intothe downstream partial annular space 20, which guide the return flowinto the partial annular space 20 affecting the downstream surface ofthe exterior housing 2, with the return flow in the closed positionpressing the annular membrane 11 against the through openings 14 and/orthe rounded or curved interior annular rim 23 against the centralhousing core 18.

The reaction pressure and the reaction behavior of the closing and/orthe throttle body can be determined depending on the rubber-elasticcharacteristics of the material used, for example, the shore-hardness.

Furthermore, the reaction pressure and the reaction speed, particularlyof the function of the non-return element, can be modified by theselection of the radial pre-tension of the annular membrane 11.

Various embodiments 100, 101, 102, and 103 of an insertable componentprovided as a through-flow regulator are shown in FIGS. 4 through 8. Thehousing 2 of insertable components 100, 101, 102, and 103, insertable ina gas or liquid line, is also provided with two housing parts 3, 4,which clamp a housing seal 5 between one another. The housing seal 5 isconnected in one piece on both sides with one throttle body 15, 15′each. Each of these throttle bodies 15, 15′ is supported in a controlgap 17, 17′, respectively, on the inside of the housing 2.

As is discernible from the longitudinal cross-sections in FIGS. 4, 6, 7,and 8, the housing parts 3, 4 are each provided with at least twoconcentric annular housing walls 24, 25, and 26 and/or 24′, 25′, and26′, which are connected to one another via radial connection bars 27 inthe form of spokes. The annular walls 24/24′, 25/25′, and 26/26′ areallocated in pairs towards one another, with the two central facialwalls 25/25′ of said housing parts 3, 4 clamping the housing seal 5between their facial surfaces facing one another and separating theparallel control gaps 17, 17′ from one another.

At the sides of the adjacent annular walls 24/25′ and/or 26/26′, facingthe central annular walls 25/25′, a control profiling 28, 28′ isprovided each aligned in a through-flow direction, which is formed hereby grooves or bars distributed in the circumferential direction. Here,the throttle bodies 15, 15′ can be provided at the housing parts 3, 4with control profiling 28, 28′ embodied differently.

The throttle bodies 15, 15′ provided on both sides of the housing seal 5react at different differential pressures. While a first throttle body15 preferably reacts in the low pressure range, a second throttle body15′ reacts in the high pressure range, in contrast thereto. In order toensure a different reaction of the throttle bodies 15, 15′, the throttlebodies 15, 15′ are provided with different shapes adjusted to theirpressure, for example, as shown in the insertable components 100, 101,102, and 103.

For example, at the housing seal 5 of the insertable components 100, 102shown in the FIGS. 4 and 7, one geometrically soft and one oppositelystiff lip are provided as throttle bodies 15, 15′, reacting withdifferent sensibility to the differential pressure. The throttle bodies15, 15′ having different stiffnesses control the through-flow amounts inthe various pressure ranges and complement one another this way in thelow pressure and the high pressure range.

For very low differential pressure, for example amounting to 0.1 bar,the geometrically soft lip embodiment, serving as a throttle body 15,contacts the control profiling and begins to reduce the free flowcross-section. The geometrically stiff lip 15′ does not deform, whichallows the free cross-section of this area to be fully available for theflow of the fluid. By the large geometrical elasticity of the lipembodiment 15, the shape is deformed very rapidly into the controlprofiling by any rising pressure, i.e. in the range up to 0.4 bar, andultimately seals the free cross-sections available here. When thepressure further increases, the stiff lip formation, serving as athrottle body 15′, deforms as well and thus maintains a constantthrough-flow in the high pressure range.

In the insertable components 101 and 103, shown in FIGS. 6 and 8, thelip-shaped throttle body 15 reacts to comparatively low differentialpressure, while the stiffer O-ring shaped throttle body 15′ becomesactive at higher differential pressure.

This way, the characteristic line of the through-flow regulator shownhere achieves a through-flow target value at a very low pressure andmaintains it constant up to the high pressure range at approx. 10 bar,for example.

In order to control the reaction behavior of the individual throttlebodies 15, 15′, the control motion of these throttle bodies can belimited by a control stop. While the connection bars 27 serve asdownstream throttle-body supports for the O-ring shaped throttle bodies15′ of the insertable components 101 and 103, the connection bars 27serve as control stops for the lip shaped throttle bodies 15, 15′. Forthis purpose, the lip-shaped throttle bodies 15, 15′ are provided with alip section 29 aligned approximately laterally to the through-flowdirection, which cooperates with its downstream surface with theadjacent control stop and which extends into a free lip end region 30,aligned diagonally in a direction opposite the through-flow direction.

The through-flow controllers 100, 101, 102, and 103 shown in two stepsin FIGS. 4 through 8 can be sorted into two types with 2 variationseach: while in the first type according to FIGS. 4 and 7 the throttlebodies 15, 15′ are embodied as differently reacting lip embodiments, inthe second type according to FIGS. 6 and 8 one throttle body 15 isembodied lip shaped and another throttle body 15′ is embodied O-ringshaped.

The two variants of these two-step types of through-flow regulatorsdiffer from each other in which throttle body 15, 15′ is active towardsthe inside and which one is active towards the outside.

In the through-flow regulator 100 shown in FIGS. 4 and 5, thegeometrically stiff and the geometrically soft lip embodiment 15, 15′are connected to one another by the circumferential housing seal 5. Thehousing seal 5 is fixed in its position by the annular housing walls25/25′ of the upper housing part 3 and the lower housing part 4. Theannular housing walls 25, 25′ and the housing seal 5 are adjusted to oneanother such that the control gaps 17, 17′, allocated to the throttlebodies 15, 15′, are separated from one another in a water-tight manner.For this purpose, one of the annular walls 25, 25′ can be provided witha circumferentially raised sealing bar, which is pressed into thehousing seal 5. The embodiment of the housing parts 3, 4 in the area ofthe downstream connection bars 27 determines if any distance remainsbetween the throttle bodies 15, 15′ and the downstream connection bars27 and to what extent, which also serve as control stops.

The connection bars 27 serving as control stops and their distance fromthe throttle bodies 15, 15′ influence the control behavior of theinsertable components shown here; in the flow of the fluid thelip-shaped throttle bodies 15, 15′ deform relatively easy at thebeginning, until the bottom of the lip contacts the connection bars 27of the housing 2. When this state has been reached, the lip-shapedthrottle bodies 15, 15′ deform to a lesser extent under increasingdifferential pressure so that the free cross-sections are not closed asfast under high pressure. The interior control profiling 28′ is providedat the housing wall formed by the annular walls 26/26′. In contrastthereto, the housing wall formed by the annular walls 24/24′ is providedon its interior wall with the exterior control profiling 28, which formsthe respective control profile for the geometrically soft lip embodiment15 shown in FIG. 4.

At the interior annular wall 26, 26′ of the central housing embodiment,the first housing part 3 engages a central recess 31 of the seconddownstream housing part 4.

In reference to the through-flow regulator 100 shown in FIGS. 4 and 5,the insertable component 102 differs in FIG. 7 merely by the arrangementof its geometrically stiff lip embodiment and its soft one. In theinsertable component 101 shown in FIG. 7 the geometrically stiff,lip-shaped throttle body 15′ is provided on the outside, while thegeometrically soft lip-shaped throttle body 15 is arranged on theinside. The lip-shaped throttle body 15′, supported in the exteriorcontrol gap 17, seals a larger surface during deformation radiallyoutward than the lip-shaped throttle body 15 affecting the interiorradius. This way, the arrangement of the lip-shaped throttle body 15,15′ on the inside or the outside affects the reaction behavior of theseinsertable components.

While in FIG. 6 the lip-shaped, softer throttle body 15 affects theexterior control gap 17 and the O-ring shaped, stiffer throttle body 15′is located inside the control gap 17′, the O-ring shaped throttle body15′ is arranged in the exterior control gap 17 in the insertablecomponent 103 shown in FIG. 8 and the lip-shaped, softer throttle body15 is arranged in the interior control gap 17′, in contrast thereto.

The embodiment of the through-flow regulator 100, 101, 102, and 103shown here and the reaction behavior of these insertable components canbe varied and influenced constructively by the geometrical stiffness ofthe soft and the stiff lip embodiment 15, 15′, by the elasticcharacteristics of the material used, by the distance of the throttlebodies 15, 15′ on the one hand and the downstream provided controlstops, on the other hand, by the dimensions of the control gap 17, 17′remaining between the throttle body and the adjacent housing wall, bythe control profiling 28, 28′ provided at the adjacent housing wall, andby the arrangement of the sensitively reacting throttle body in the areaof the interior and the exterior control gap 17, 17′.

The insertable components 1, 10, 100, 101, 102, and 103, as discerniblefrom FIGS. 1 through 8, can be composed from as little as three partsand are characterized by their simple production, their compact design,as well as their low construction height.

1. A through-flow regulator that is insertable into a gas or liquidline, comprising a housing (2), with at least one throttle or regulatingbody (15, 15′) being arranged inside said housing, defining a controlgap (17, 17′) between the throttle or regulating body and a housing wall(24, 26), at least one housing wall (16), limiting the control gap (17,17′), is provided with a regulating profiling (24; 28, 28′), in the formof ribs or grooves, extending in a through-flow direction (Pf1), withthe control gap changing depending on pressure to regulate flow in theflow-through direction, the housing (2) is comprised of at least twohousing parts (3, 4) and between the facing sides of two housing parts(3, 4), a housing seal (5) is provided, which is integrally connected inone piece to the at least one throttle body or regulating body (15, 15′)supported inside the housing, wherein the at least one throttle body(15, 15′) is lip-shaped and is aligned with a free lip end region (30)thereof extending diagonally opposite the through-flow direction (Pf1).2. The through-flow regulator according to claim 1, wherein the throttlebody (15) is mounted in a housing chamber between the upstream and thedownstream housing part (3, 4) and the downstream housing part (4) isprovided with an interior housing wall (24′) forming a limit of thecontrol gap or a similar rest for the annular throttle body (15.)
 3. Thethrough-flow regulator of claim 1, wherein the at least one throttlebody (15, 15′) is lip-shaped.
 4. The through-flow regulator according toclaim 1, wherein a control motion of the at least one lip-shapedthrottle body (15, 15′) is limited by a control stop.
 5. Thethrough-flow regulator according to claim 4, wherein the at least onelip-shaped throttle body (15, 15′) comprises a lip section, alignedapproximately lateral to the through-flow direction (Pf1), which extendsinto the free lip end region (30) aligned opposing the through-flowdirection (Pf1.)
 6. The through-flow regulator according to claim 5,wherein the lip section (29), approximately aligned lateral to thethrough-flow direction (Pf1), cooperates with the control stop.
 7. Thethrough-flow regulator according to claim 1, wherein at least one of thehousing parts (3, 4) comprises at least two approximately concentricannular walls (24, 25, 26; 24′, 25′, 26′) connected via approximatelyradial connection bars (27).
 8. The through-flow regulator according toclaim 7, wherein at least one of the connection bars (27) arrangeddownstream of the throttle body (27) is embodied as a control stopand/or as a throttle body support.
 9. The through-flow regulatoraccording to claim 1, wherein the housing parts (3, 4) are provided withannular surfaces, facing one another, between which the housing seal (5)is clamped.
 10. The through-flow regulator according to claim 1, whereina central housing portion of a first housing part (3) engages a centralrecess (31) of a second housing part (4.)
 11. The through-flow regulatoraccording to claim 1, wherein the housing seal (5) is connected on bothsides to at least one throttle body (15, 15′), said throttle bodies (15,15′) are each supported on the inside of said housing (2) in arespective control gap (17, 17′).
 12. The through-flow regulatoraccording to claim 11, wherein the housing walls (25, 25′) clamping thehousing seal (5) on faces therebetween separate the control gaps (17,17′) allocated to the throttle bodies (15, 15′).
 13. A through-flowregulator that is insertable into a gas or liquid line, comprising ahousing (2) formed of at least two housing parts (3, 4) and betweenfacing sides of the two housing parts (3, 4), a housing seal (5) isprovided, which is integrally connected in one piece to throttle orregulating bodies (15, 15′) supported inside the housing, with thethrottle or regulating bodies (15, 15′) defining control gaps (17, 17′)between the throttle or regulating bodies and housing walls (24, 26),with the control gaps changing depending on pressure, the housing seal(5) is connected on each of its sides to respective ones of the throttleor regulating bodies (15, 15′), said throttle bodies (15, 15′) are eachsupported at a respective one of the control gaps (17, 17′), and thethrottle bodies (15, 15′) provided on both sides of the housing seal (5)react to different differential pressures and, on the one hand, thefirst throttle body (15) reacts in a low pressure range and that, on theother hand, the second throttle body (15′) reacts in a high pressurerange.
 14. A through-flow regulator that is insertable into a gas orliquid line, comprising a housing (2) formed of at least two housingparts (3, 4) and between facing sides of the two housing parts (3, 4), ahousing seal (5) is provided, which is integrally connected in one pieceto throttle or regulating bodies (15, 15′) supported inside the housing,with the throttle or regulating bodies (15, 15′) defining control gaps(17, 17′) between the throttle or regulating bodies and housing walls(24, 26), with the control gaps changing depending on pressure, thehousing seal (5) is connected on each of its sides to respective ones ofthe throttle or regulating bodies (15, 15′), said throttle bodies (15,15′) are each supported at a respective one of the control gaps (17,17′), and the throttle bodies (15, 15′) comprise different designs, eachadapted to a different reaction pressure.
 15. The through-flow regulatoraccording to claim 14, wherein the throttle body (15) on one side of thehousing seal (5) is lip-shaped and, the throttle body (15′) on an otherside of the housing seal is embodied as an O-ring.
 16. The through-flowregulator according to claim 14, wherein the throttle body (15, 15′)connected on each side of the housing seal (5) is lip-shaped.
 17. Thethrough-flow regulator according to claim 14, wherein the throttle body(15) reacting in a low pressure range is allocated to an exteriorcontrol gap (17).
 18. The through-flow regulator according to claim 14,wherein the housing seal (5) and the throttle bodies (15, 15′) connectedthereto are formed as a multi-component die-cast part and the throttlebodies (15, 15′) are made from different elastomers.
 19. Thethrough-flow regulator according to claim 14, wherein the throttle body(15) reacting in a low pressure range is allocated to an interiorcontrol gap (17′).